My 97 miata is burning oil in cylinder number one. Compression tests show that all cylinders are with in tolerant range showing that my rings should be good. The compression from cylinder one and cylinder two have a variance of 10 psi. Cylinder one is also the one with the higher compression showing that the head gasket between the two cylinders should also be good. There is no oil leaking from the head to the outside of the block indicating that the head gasket should be good there to. This leads me to believe that I have a bad valve seal. I know that there is a way to replace the seals without removing the head. But I figure it would be a good idea to do it anyways. Thus allowing my to inspect and clean everything properly. While I'm at it I figure I could do a few upgrades. This is the purpose of this post. I am looking for feed back and perhaps some guidance on my ideas.
First I plan to have the heads ported. This means that I need different valves. Where could I go to get them? Would I also have to port my intake manifold? What about my Exhaust manifold? Would I need a new one and if so where can I get it? Does anyone have a line on a good place to get racing cams lifters and springs? Can I run the stock fuel rail and injectors or even the stock ECU after doing this? If I have to go with a stand alone fuel system, would my car still be able to pass smog? I know that some of thees questions may seem elementary but this is my first fuel injected build as well as my first build an anything after 1978. Also I have never ported heads on anything I built before. Thank you for reading and thank you again for any info.